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Types of single-chip microcomputer As an important branch of computer development, according to the current development situation, single-chip microcomputer can be roughly divided into general-purpose special type, bus non-bus type and industrial control type household appliances from different perspectives.
1. General-purpose type and special type This is distinguished by the scope of application of single-chip microcomputer. For example, the 80C51 is a general-purpose microcontroller, which is not designed for a specific purpose; For example, in order to meet the requirements of electronic thermometers, the temperature measurement control circuit with ADC interface and other functions is integrated in the chip.
2. Bus type Non-bus type This is distinguished by whether the single-chip microcomputer provides parallel bus. The bus type single-chip microcomputer is generally provided with a parallel address bus, a data bus, a control bus, these pins are used to expand the parallel peripheral devices can be connected with the single-chip microcomputer through the serial port, in addition, many single-chip microcomputers have integrated the required peripheral devices and peripheral interfaces, so in many cases can not expand the bus in parallel, greatly reduce the cost of packaging and chip volume, this kind of single-chip microcomputer is called non-bus single-chip microcomputer.
3. Control type and household appliance type are distinguished according to the general application field of single-chip microcomputer. Generally speaking, the industrial control type has a large addressing range and strong computing power; Most of the single-chip microcomputers used for home appliances are special-purpose, and Tanye is usually small package, low **, and has a high degree of integration of peripheral devices and peripheral interfaces. Obviously, the above classification is not unique and strict.
For example, the 80C51 single-chip microcomputer is both general-purpose and bus, and can also be used for industrial control.
Single-chip microcomputer (single-chip microcomputer) is an integrated circuit chip, which uses ultra-large-scale integrated circuit technology to put the best processor CPU, RAM, read-only memory ROM, a variety of IO ports and interrupt systems, timer counters and other functions with data processing capabilities.
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Of course, it's the ARM series.,Let's learn ARM after getting started with 51.。
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Specifically, there are only a few large domestic manufacturers. In all fairness, the gap between the domestic and foreign ones of the GM series and Taiwan's is not big. It mainly depends on customer recognition and market promotion.
For example, I am making BGI single-chip microcomputer, and at present, within 64 pins, 32-bit single-chip microcomputer can completely replace foreign ones. For example, ST, Ti430, PIC, etc. At present, the users who are using our ** are mainly consumer and simple control products.
For example: thermostats, power banks, electric toys, fire probes, simple motor control, etc. For industrial use, it is still really impossible to do foreign use.
This route mainly lies in the fact that engineers use a habit of use, unless the company asks for cost reduction, basically will not study domestic production. After all, foreign brands, the recognition of them in the minds of engineers is their greatest wealth.
In the future, domestic single-chip microcomputers will continue to develop towards higher frequency and lower power. This route is relatively long, and there is a long way to go. The cost advantage of industrial promotion is not the main consideration, and the accumulation of stability and word-of-mouth brands is a long job.
Domestic engineers want to use domestic ones, after all, using China's own MCU is not only lower, but also domestic manufacturers are fighting, and engineers will have the feeling of "grandfather" service.
In summary, there is no mystery in the domestic MCU, China can already develop its own products, and the stable production of general-purpose products can completely eliminate the need for foreign products. Let's look at the marketing one after another, when the engineer recognizes, we are really successful. Foreign brand monopoly profits are also coming to an end.
This process is long but inevitable, because because China, the largest commercial country, will cut down the world's products, so that people all over the world can enjoy high-quality and low-cost goods and services. That's how business thinking is in China. It is not the robber logic of noble foreigners who study high-precision, register patents, and take monopoly profits.
From this point of view, it is not an exaggeration to say that China is the hope of the world.
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Fudan Microelectronics, Shanghai Juquan Optoelectronics, and Beijing Zhixin Microelectronics are all ARM cores.
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There are a lot of single-chip microcomputers in China, and it is not absolutely possible to say which chip or which brand of chip is good, it depends on your product and requirements, as well as your product positioning requirements. Each manufacturer has an advantageous product, and they all focus on a certain area. The chip that suits your product is the best.
We have been looking for this company to help us develop the program, cooperation for four or five years, has been relatively stable, they will solicit the customer's products to select the right chip, you can play this ** consultation 18675583658. Hope it helps!
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At present, the best cost-effective NEC 8-bit high-performance flash microcontroller, ** is very low.
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It should still be a 51 microcontroller.
Its performance, for beginners, is the best.
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